Some where that wire you probed is grounding out. That is most likely a wire that goes directly from the EST module in the distributer to the ECM.
Unplug the wires from the computer and the EST module and check it to ground. You should get ifinate resitance. No readings. That is saying that the wire is not grounding any where. Check the harness where the plug comes out of the distributer. It could be broken and shorting to another wire or the distributer itself.

 

would you hapen to kno wat coulor wire it is comming out of the ecm and if i would be able to jump it to the module to see if it will work? thanks

 

The book shows circuit 423 as being a white wire. C8 on the ecm plug. (some times you can see small markings on the plug to let you know which one will be C8)
As for a jumper wire you would have to cut the other wire and splice. Thats why I suggest disconecting the computer and distributer module plugs and testing that wire to ground and you can also check continuity. Wiggle the wires around as you do these test also. If there is a break it may help you to find it.

 

i checked for resistance and it is grounding out somewere

 

If you unplugged both connectors and the wire is grounding and you wiggled the harness and can not find it then I would say you should try to replace that wire.

 

both conectors were unpluged but i couldnt get to the wigle the harness ill have someone wiggle it today while i have the meter on it to see if i can find where it is grounding. thanks for the help madmike

 

re checked, wire is not grounding out, musta had the wrong conector i checked the wire on the plug that goes to the dist with the plugins all unpluged[&:]any other solutions?

 

any more thoughts anyone?

 

Plug the connector back onto the module in the dizzy and test it at the computer plug to see if it is grounding. The module may be grounding internaly to the distributer. It has a metal base. Or take the module out and have it tested at some place like Autozone.

 

yah ill try it but i had a differnt moduale there so i changed it and it never made any difference and ther was no trouble with it when it was took out so i dunno